Thermomagnetic writing in thin Co/Pt layered structures

  • F. J. A. M. Greidanus
    Philips Research Laboratories, P. O. Box 80.000, 5600 JA, Eindhoven, The Netherlands
  • W. B. Zeper
    Philips Research Laboratories, P. O. Box 80.000, 5600 JA, Eindhoven, The Netherlands
  • F. J. A. den Broeder
    Philips Research Laboratories, P. O. Box 80.000, 5600 JA, Eindhoven, The Netherlands
  • W. F. Godlieb
    Philips Research Laboratories, P. O. Box 80.000, 5600 JA, Eindhoven, The Netherlands
  • P. F. Carcia
    Central Research and Development Department, E. I. duPont de Nemours and Company, Experimental Station, Wilmington, Delaware 19898

書誌事項

公開日
1989-06-12
DOI
  • 10.1063/1.101073
公開者
AIP Publishing

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説明

<jats:p>In this letter we demonstrate thermomagnetic writing in a Co/Pt thin-film layered structure or multilayer: 25×(4.1 Å Co+19 Å Pt). This film exhibits perpendicular magnetic anisotropy, 100% remanence, and a coercive field of 76 kA/m at room temperature. The coercive field is a strong function of temperature and decreases to zero at 250 °C. In this layered film regular domains can be written with low applied fields (below 50 kA/m) and the writing threshold is about 4 mW. Their good magnetic and magneto-optical properties together with their high corrosion resistance make these layers promising candidates for magneto-optical recording.</jats:p>

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